CN1621319A - A warming plate for composing freight packaging box - Google Patents
A warming plate for composing freight packaging box Download PDFInfo
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- CN1621319A CN1621319A CN200410008301.5A CN200410008301A CN1621319A CN 1621319 A CN1621319 A CN 1621319A CN 200410008301 A CN200410008301 A CN 200410008301A CN 1621319 A CN1621319 A CN 1621319A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
- B65D81/3848—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation semi-rigid container folded up from one or more blanks
- B65D81/3862—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation semi-rigid container folded up from one or more blanks with a foam formed container located inside a folded box
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Abstract
A warming plate for composing a freight packaging box is made of a hard warming core material which is envelopped by a polyethylene foam layer, the core material is composed of polyurethane, polystyrene or polyethylene terephthalate foam bolcks, the polyethylene foam bolck is a closed air chamber foam or a non-crosslinking foam, an inner surface and an outer face of the warming plate are composed of a layer of polyethylene foam respectively, the density of the inner surface is larger than the density of the outer density, the thickness of the innver surface is larger than the thickness of the outer surface. One or more warming plates composes a warming freight packaging box, various warming plates are splited and assembled to form a cubic or cuboid box with side plates interconnected with a sealed soleplate. Connection between all components can use a heating slit manner or a tongue and groove combined manner. The invention prolongs the life time of the packaging box, enhances the heat efficiency, decreases usage amount of the warming material, reduces weight of a standard size packaging box, thereby reducing use cost of the warming freight packaging box.
Description
Technical field
The present invention relates to be applied to the warming plate of freight transport packing case, and be used for shipment and store, temperature or temperature controlling range are had the freight transport packing case of the perishable farm products etc. of strict demand as freezing tissue and other the temperature traverse sensitive product.
Background technology
In the prior art, a large amount of packing chests is used to store and transport the product to the temperature traverse sensitivity.The kind of packing chest has the shipping fiberboard carton of warm materials such as liner such as expanded polystyrene (EPS), polyurethane or other foameds materials.Usually, warm material is made into the assembly type plate, with its assembling combination together, and to form the hollow moist closet.Then, before the sealing or the packing chest that is ready for shipment, use the seben or the cover plate for sealing moist closet of combining closely with warm material.
And a kind of method is arranged in addition is to adopt injection moulding, so that the integral heat insulation that includes hollow chamber material to be provided.The integral heat insulation material itself that cover plate is housed promptly is used directly as reservoir vessel, maybe can be placed in fiberboard carton or other protective materials.In addition, warm material can also be injected in the insulation insulating space between packing chest outer wall and the firm liner.
When transporting, during such as some medical treatment or pharmaceuticals, use the polyurethane packing chest of hard usually to the tetchy product of temperature traverse.Polyurethane has the insulating characteristics that is better than EPS greatly.
Above-mentioned two types packing chest respectively has its merits and demerits, particularly more can embody its advantage aspect the shipment mass freight.The manufacturing cost of molded plastic package case is higher, and its reason mainly is a die cost and with due to EPS uses the blowing agent.Use polyurethane to substitute EPS and can reduce die cost.Yet polyurethane tends to be bonded in the tank wall surface, thereby produces the problem of waste disposal aspect, because must handle simultaneously extranal packing box, polyurethane and inside liner.With regard to the empty package case of making by EPS and polyurethane, also there be considerable depositing and the traffic cost problem.
The assembly type warming plate can be avoided above-mentioned some problem.Owing to used simple and the less template of volume, reduced manufacturing cost.In addition, deposit, can be assembled into packing chest as required, thereby also reduced transportation and deposited cost owing to warming plate can be superposeed with independent flat package carboard.Owing to only need to change the warming plate of broken parts, need not to change whole packing chest, thereby the assembly type warming plate is convenient to recycling more.But the heat insulation effect of assembly type freight transport packing case is lower than the integral type packing chest of equal type, and reason is that air can enter in the case by extra slit, makes the temperature build-up in the packing chest.But, can utilize the thickness that increases warming plate, improve heat retaining property; And can reduce the internal storage volume of comparable size freight transport packing case like this, also increased traffic cost simultaneously.
The warming plate of another kind of type is vacuum heat-insulation plate (VIP).This warming plate is the vacuum core, is made by open air chamber polymer foams, and skin is enclosed with suitable covering such as mylar or aluminium foil.It is reported that this warming plate has very high R value (thermal resistance value), reaches per inch thickness R-30.But,, be easy to damage though the VIP plate has very high thermal resistance value.After surrounding layer was pierced, the R value can significantly reduce.This has just limited the application and the repeated usage of VIP plate.
Mr. T.K.Stovall introduces in a disclosed vacuum heat-insulation plate seminar, and except that more weak direct anti-damage capacity, " edge effect " and " warming plate aging effect " also caused the reduction of warming plate R value.Baltimore, 3-4 day in May, 1999 the 6th page of capable conclusion that draws of 26-31: think that the VIP warming plate is not suitable for permanent use.
Also recommend and introduced various types of insulation packing chests in the following patent literature.
US Patent (numbering: 5,441,170) introduced a kind of assembly type freight transport packing case with many interior lattices.Sandwiched heat insulation board is assembled in the corrugation freight transport packing case.This warming plate is by forming attached to the sandwich core of poly-chlorinated isocyanurates of aluminizing between reflectance coating on the core.This warming plate is encapsulated in the thermoplastic covering, can clean so that repeated usage.
US Patent (numbering: 6,325,281) introduced a kind of freight transport packing case with many heat-insulation layers material.This packing chest is made up of the detachable inner lining body of outer carboard, hard EPS shell, VIP material and the closed interior cardboard in the inner lining body.The purpose of this patent is to solve existing durability defective when using VIP.This warming plate is the vacuum core, is made by open air chamber polymer foams, outer be enclosed with fully suitable to mylar or aluminium foil covering.
US Patent (numbering: 5,924,302) introduced a kind of whole shipping insulation packing chest that limits the storage area that has.Its cover plate is crowned, to strengthen box sealing.
US Patent (numbering: 6,381,981) introduced a kind of freight transport packing case that is used for the freezing tissue sample.(form by the internal box of body skin of for example, EPS) making and VIP material by the insulating foam material for this packing chest.Inner chamber is equipped with the elasticity assembly set, and the scalable cavity volume is to satisfy the traffic requirements of less product.
Document WO 98/01359 has been introduced a kind of stacked package packing chest, is made of fiber sandwich layer, outer polyacrylic film or high density polyethylene (HDPE) and the internal layer aluminium foil that is coated with polyethylene foil.
US Patent (numbering: 4,928,847,5,102,004 and 5,111,957) all introduced and a kind ofly constitute for four layers, utilized polypropylene net and polyethylene foil lamination to strengthen four top layers by polyurethane core and upper and lower surface.
Therefore all there is part not fully up to expectations in above-mentioned all packing chests, need a kind of satisfy low temperature transportation and stored prod demand, have long service life, make, use, deposit freight transport packing case minimum with traffic cost and that component parts is minimum.Realize this goal, the use amount of the service life of just necessary prolongation packing chest, raising heat efficiency, minimizing warm material, the weight of the sized package case that debases the standard, thus reduce the use cost that is incubated the freight transport packing case.
Summary of the invention
The technical scheme that the present invention is adopted for solution above-mentioned technical matters of the prior art provides a kind of warming plate that is used to constitute the freight transport packing case, and described warming plate is made of the hard insulating material core, and core intactly is enclosed with the polyethylene covering outward.
Further, core is made of polyurethane, polystyrene or polyethylene terephthalate foam block.
Further, polyethylene is the closed air chamber foam.
Further, polyethylene is the non-crosslinked foam.
Further, this warming plate has inside and outside and three surfaces, edge, and each is made of inside face and outside face the layer of polyethylene foam; The density ratio that forms the polyethylene of inside face forms the density of the polyethylene of outside face and wants big, and but the thickness than the polyethylene that forms outside face is little but form the thickness of polyethylene of inside face.
Further, this warming plate engages with an other at least plate, and the mode of joint adopts methods such as slip feather and groove, bevelled tenon or wedged tenon be hinged.
The present invention also provides to utilize by above-mentioned one or more warming plates and has constituted the method for insulation packing chest and the insulation packing chest that is made of above-mentioned one or more warming plates.
Concrete, described insulation packing chest adopts above-mentioned multiple warming plate amalgamation assembling, forms cube or cuboid box, and its side plate and closed bottom interconnect.
Further, the present invention also provides a kind of side plate, closed bottom and sealing top blind flange the interconnective freight transport packing case that is made of a plurality of warming plates.This freight transport packing case comprises an above-mentioned insulation can at least.
The manufacture method that is used for constituting the warming plate of freight transport packing case of the present invention may further comprise the steps:
(1) prepare first, second and third and four rectangle polyethylene members, each member has two opposing end faces;
(2) near the end of above-mentioned each member or its, each member is linked together, form the rectangular frame of a reality;
(3) one the 5th polyethylene member of preparation is connected this member with rectangular frame, forms the housing with closed bottom and inner chamber.
(4) fill insulant material in inner chamber.
(5) preparation the 6th polyethylene member links together itself and housing, but closure casing and warming plate is provided.
Connection between all members can form sealing or sealing fully.Can adopt the mode that adds thermal bonding to connect each member.
Description of drawings
The following reference detailed description of the present invention that best embodies shown in the drawing of enclosing, further introduce the present invention:
Fig. 1 is the transparent view of sandwiched heat insulation board of the present invention.
Fig. 2 is the local amplification profile of sandwiched heat insulation board shown in Figure 1.
Fig. 3 is the sectional side view of sandwiched heat insulation board A-A among Fig. 1.
Fig. 4 is the top-sectional view of sandwiched heat insulation board B-B among Fig. 1.
Fig. 5 is the transparent view of the insulation packing chest that combined by sandwiched heat insulation board among the present invention.
Fig. 6 is the decomposition diagram of shipping insulation packing chest of the present invention.This packing chest includes the insulation packing chest shown in the figure, shipping fiberboard carton, filling block, cryogen, capacity weight (goods) and sandwich cover plate.
Fig. 7 is the top plan view of shipping insulation packing chest of the present invention.Inside has not had capacity weight, and cryogen omits.
Fig. 8 is the section side view of shipping insulation packing chest of the present invention.Section part has shown the insulation packing chest that is combined by sandwiched heat insulation board in the shipping fiberboard carton.
Fig. 9 is the transparent view of another freight transport packing case of the present invention.Four insulation packing chests that combined by sandwiched heat insulation board are housed in the shipping fiberboard carton.
Figure 10 by sandwiched heat insulation board of the present invention one of them make in link the plan view of use equipment.
Figure 11 is the C-C front elevation of production facilities shown in Figure 10.
Figure 12 is the D direction lateral plan of production facilities shown in 10.
Figure 13 by sandwiched heat insulation board of the present invention another make in link the plan view of use equipment.
One of them makes the lateral plan of employed another equipment in the link to Figure 14 for sandwiched heat insulation board of the present invention.
The freak oil transparent view that Figure 15 processes for Figure 10 to Figure 14 institute use equipment.
Figure 16 is the lateral plan of equipment shown in Figure 14 in the further processing link of sandwiched heat insulation board of the present invention.
Figure 17 is the transparent view of another kind of warming plate among the present invention.
Figure 18 is for being assembled into Figure 17 warming plate the transparent view of the assembling process that is incubated packing chest.
Figure 19 is the transparent view of another kind of warming plate among the present invention.
Figure 20 is for being assembled into Figure 19 warming plate the transparent view of the assembling process that is incubated packing chest.
Figure 21 is the temperature and time diagram of curves (no lamination-non-warming plate of the present invention) of the insulation packing chest that combines of 1 inch (25mm) polyurethane sheet.
Figure 22 is (1 inch+13mm) the temperature and time diagram of curves (no lamination-non-warming plate of the present invention) of the insulation packing chest that combines of polyurethane sheet of 38mm.
Figure 23 is the temperature and time diagram of curves (no lamination-non-warming plate of the present invention) of the insulation packing chest that combines of polyurethane sheet (1 inch) and polyethylene board (13mm).
Figure 24 is the temperature and time diagram of curves of the insulation packing chest that combined by sandwiched heat insulation board of the present invention (10mm polyethylene, 1 inch (25mm) polyurethane, 3mm polyethylene)
Figure 25 is the temperature and time diagram of curves (no lamination-non-warming plate of the present invention) of the insulation packing chest that combines of 2 inches (50mm) polyurethane sheets.
Figure 26 is (2 inches+13mm) the temperature and time diagram of curves (no lamination-non-warming plate of the present invention) of the insulation packing chest that combines of polyurethane sheet of 73mm.
Figure 27 is the temperature and time diagram of curves (no lamination-non-warming plate of the present invention) of the insulation packing chest that combines of polyurethane sheet (2 inches) and polyethylene board (13mm).
Figure 28 is the temperature and time diagram of curves of the insulation packing chest that combined by sandwiched heat insulation board of the present invention (10mm polyethylene, 2 inches (50mm) polyurethane, 3mm polyethylene).
The specific embodiment
The present invention is based on the warming plate of being invented, after it being assembled into the insulation packing chest, can strengthen the heat-proof quality of packing chest, heat insulation effect is higher than the packing chest of being made by comparable size cellular insulant such as hard polyaminoester or expanded polystyrene etc.Good insulation effect stems from the whole parcel of polyethylene covering warm material.By inference, because this covering has improved the leak tightness in slit between the warming plate that is coupled to each other, thereby improved the heat-proof quality of core.In addition, by improving the leak tightness of heat insulation core material insulating material, improved the heat-proof quality of these warm materials too.
Warming plate is shown in Fig. 1 to 4.The core of every block of plate all includes warm material and polyethylene.Warming plate shown in the figure (1) is a rectangle, yet various difform warming plates can be provided according to the shape of freight transport packing case.This warming plate (1) is by an outside polyethylene fitting part (3), and an inboard polyethylene fitting part (5) is positioned at foam core material (15) four peripheral polyethylene laths or side member (7,9,11,13) on every side.The outside fitting part (3) of warming plate constitutes the part of insulation packing chest outside face, and inboard fitting part (5) constitutes the part of inner chamber.When this warming plate being packed into the insulation packing chest, promptly form the inwall of insulation packing chest.
Can from numerous polymer heat preserving foams, select foam core material, such as polyolefin (for example, polyethylene and polypropylene), polystyrene, polyurethane (comprising poly-chlorinated isocyanurates), PET (terephthalic acid diol polyester) and polyvinylchloride, particularly EPS and hard polyaminoester.By using hard polyaminoester, core also can increase the impregnability of warming plate.Also can in core, add for example lightweight aluminium sheet etc. of a plate, to strengthen core and to have the warming plate of core.The performance of polyurethane and EPS makes these two kinds of poly-mers be specially adapted to foam core material (15).Can use the mono-single monolithic block or form the core foamed materials jointly by a plurality of blocks.Can adopt such as using mould or any ways such as cutting or extrusion forming that the block with suitable shape is provided.Also can adopt the polymeric material that for example polyurethane etc. is suitable to inject cavity in the polyethylene covering.Use the advantage of polyurethane to be that it can be full of cavity, and core foamed materials and polyethylene covering are bonded together.
Should use the closed air chamber polyethylene as the polyethylene covering.Certainly, also can use crosslinked foams, preferably use the non-crosslinked polyethylene, because its price is lower and easy operating when forming covering.On market, numerous all size polyethylenes is arranged, and be considered to be suitable for and actv..The product that best polyethylene is provided for Fa Kedala World Foam company.
The thickness of outside polyethylene fitting part (3) should be at least 5mm, and is preferable between the 5mm to 20mm, and best is about 10mm.By providing extra insulation and protection core to avoid may damage in the transportation, the width of outside foam can strengthen the insulating power of core.The polyethylene layer that 10mm is thick helps to prevent the damage to core, thereby reduces the damage to warming plate.
The density of poly-mer preferably is equal to or greater than 15kg/m
3, 20kg/m
3To 40kg/m
3Between preferable, best be about 30kg/m
3If necessary, can between outside foam fitting part and core, add for example aluminium sheet etc. of skim light elastic material, extra damage protection is provided.
The thickness of inboard foam fitting part (5) should be at least 0.5mm, and is preferable between the 1mm to 5mm, and the best is about 2 or 3mm.The thickness of fitting part (5) should be significantly less than the thickness of outside polyethylene fitting part (3), and it need not to prevent and protects core to avoid coming the interior impact of self-heat conserving packing chest because assemble afterwards.But, preferably use polymeric material, so that repeated usage.With regard to health and easy to clean with regard to, preferably use the density polymer higher foam of polymers more used than outside fitting part, make inboard fitting part.This foam should have fine and closely woven air chamber structure, has the medical product that strict hygienic standard requires to be applicable to.The density of inboard fitting part should be at least 60kg/m
3, 80kg/m
3To 250kg/m
3Between preferable, best be about 100kg/m
3
In order to obtain extra insulation effect, inboard foam fitting part also can comprise one deck aluminium foil.This very thin reflecting horizon for example aluminium can further strengthen the heat-insulating property of warming plate.Can utilize polyethylene foil protection aluminium foil.
Preferably peripheral polyethylene lath (7,9,11 and 13) is placed the gap between the outside and the inboard polyethylene fitting part.The mode of the peripheral polyethylene lath of another kind of configuration is to make it be tight against the edge of the outside and inboard fitting part, so also can form a smooth edge surface, but is optimal selection.Because the marginal portion of warming plate may be subject to stress influence and damage in put procedure, and think that this kind mode can not provide warming plate as shown in FIG. the same elasticity.Also having a kind of mode is to use corresponding hypotenuse on peripheral polyethylene lath and interior outside fitting part, yet this kind mode is not good, because it has unnecessarily increased the complexity that warming plate is made.
Preferably use the foam of polymers that has with aforementioned outside foam fitting part same thickness and density, produce peripheral polyethylene lath (7,9,11 and 13).
Fa Kedala Fawolam polyethylene is applicable to the outside, inboard and peripheral polyethylene member.Fawolam 30 provides a kind of closed air chamber, non-crosslinked polyethylene, and its average density is about 30kg/m
3Fawolam 100 provides a kind of average density to be about 100kg/m
3Closed air chamber, non-crosslinked polyethylene.
Should adopt the mode that the outside, inboard and peripheral polyethylene member are bonded together best, so that make the seam between the adjacent warming plate have enough intensity and best leak tightness.Utilize known method can realize this purpose.The method of two kinds of the bests is to add thermal bonding and use adhesive agent.Adhesive agent is used with the core insulating material, or utilize the mode of isocyanurate foam being injected cavity and forming the core foam, can obtain extra joint effect.Yet, only need simply core to be fixed and is encapsulated in the polyethylene covering to get final product.
Core foam (15) is the key that guarantees the warming plate insulating power.Preferably use the hard polyurethane ester material, good heat-insulating property can be provided, its per inch R value is R-8 to R-9.The insulating power of EPS are relatively low, and the R value is R-4 to R-5.The difference of polyurethane air chamber structure has caused the difference of this insulating power.The density of polyurethane air chamber structure is greater than many other warm materials, and has been full of the unreactable gas with higher R value in its air chamber.After after a while, these indifferent gas cognition are disengaged in the polyurethane air chamber, and replacing is air, the consequently reduction of foam R value, and the R value is per inch R-7 after 2 years.Afterwards, the R value of polyurethane can be stabilized in about R-7; If but foam is damaged or the crack occurs, the R value can further descend.Therefore, the thickness requirement of core foam depends on its employed warm material, time length and desired temperature.After being combined into the insulation packing chest, warming plate should be able to remain on the temperature in the packing chest within the desirable range of temperatures in desired goods storage and haulage time.The standard thickness of core polyurethane should be between 15mm to 100mm, and is preferable between the 20mm to 80mm, and the best is about 25 or 51mm (1 or 2 inch).If use the EPS material,, must increase the thickness of core if will reach identical heat-insulating property.
Warming plate slows down the ability that heat imports in the packing chest and depends on its R value.Under the identical situation of thickness, the material with higher R value can provide heat insulation preferably.The R value that core and combining of covering foam can increase warming plate, thereby obtain better heat-proof quality.
Figure 5 shows that five warming plates (35,36,38,40 and 42) are combined into the arrangement mode of an insulation packing chest.Horizontal rectangular plate (35) forms the bottom of packing chest, and four blocks of vertical plates (36,38,40 and 42) have constituted four sidewalls of packing chest.As shown in the figure, vertically plate is positioned at the top of base plate, and its outside face flushes with the base plate periphery.Also can utilize other arrangement modes to constitute identical shaped packing chest.For example, can be a rectangular frame with vertical plate permutation and combination, then base plate is packed into wherein, so that vertically the lower plane and the base plate of plate connect together, thereby form the bottom of packing chest.
Arrange vertical plate, make plate (36 and 40,38 and 42) directly relative and be parallel to each other, plate (38 and 42) is placed between the plate (36 and 40), and make the inboard polyethylene layer of the longitudinal edge of plate (38 and 42) near plate (36 and 40).In addition, a pair of plate can be parallel but be staggered mutually, so that the outer longitudinal edge of every block of plate forms an angle of packing chest.Another outer longitudinal edge of every block of plate (adjacent longitudinal side) is near the inboard vertically surface of adjacent panels.
Plate is fixed together, and loads onto cover plate, with form an individual packages case or pack into shipping fiberboard carton or other packing chests in.When constituting the independent packet vanning, can utilize normally used joint fixed form that plate is linked together.Can use to add heat bonding, adhesive agent, aquaseal and/or connecting element, together with the plate fixing seal.Preferably utilize the adhesive agent mode that can not damage the polyethylene layer.Can use numerous connecting elements, such as screw, nail and nut, bolt.Bolt shank is packed in the hole of a plate, and screw in the nut that is arranged on the adjacent panels.Plate itself has certain shape, engages with adjacent plate and firmly is assembled together.This kind array mode and is described further shown in Figure 17 and 18 hereinafter.
Cover plate is another warming plate of the present invention, can use other warm materials to make.It is very useful using ventilative property cover plate, because using under the situation of dry ice as cooling system conditioner, it can discharge the gaseous tension that is produced in the packing chest.Because the gas that dry ice evaporated can form a large amount of carbon dioxides in packing chest, it need be emitted, form dangerous air pressure to avoid in packing chest, building up.The U.S. unites postal delivery service company (UPS) and requires to use the insulation packing chest of dry ice as cooling system conditioner, and can suitably discharge gas, prevents the accumulation of pressure.
Insulation packing chest shown in Figure 5 is suitable for being assembled in the shipping fiberboard carton most.For the convenience of depositing and transporting, the shipping fiberboard carton all has standardized form.Carboard provides further protection for warming plate and stored and handling load thereof.The inwall of fiberboard carton can be used for moving of fixing and restriction appropriate size and shape warming plate, thereby will not be fixed together by warming plate.Relevant this kind application sees also Fig. 6 to Fig. 8.
Shipping insulation fiberboard carton generally all includes the reinforcement freight transport packing case of a routine, this packing chest is by a flat underside (19), four vertical side plates (20,22,24 and 26) and by with four flaps of side plate pivotally attached (28,30,32 and 34) osed top opening.Can be with four inside fold closes openings of flap, for example adhesive tape or staple are sealed so that form the plane of a reality and utilize common employed fixing means.
Warming plate is flat on the bottom (35) of fiberboard carton, to form the end of insulation packing chest.The outside polyethylene fitting part of warming plate is contacted down and with base plate (19) inwall of fiberboard carton.The length of warming plate and width should with its four side planes near or the inwall that is tight against four side plates (20,22,24 and 26) of fiberboard carton be as the criterion.Four warming plates (36 and 40,38 and 42) vertically are placed on the top that is incubated base plate, to be combined into insulation packing chest as shown in Figure 5.The outside polyethylene fitting part of warming plate (36 and 40,38 and 42) should be tight against the inwall of four side plates (20,22,24 and 26) of fiberboard carton.The outside polyethylene fitting part of warming plate (36) should contact with the inwall of fiberboard carton side plate (20).A longitudinal side of warming plate is near the part of side plate (20 and 22) junction or near fiberboard carton side plate (22) inwall.
Another longitudinal side of warming plate (36) is tight against the inwall of side plate (20 and 26) junction or near fiberboard carton side plate (26).Equally, warming plate (40) should contact with the inwall of fiberboard carton side plate (24), and longitudinal side contacts with the inwall of fiberboard carton side plate (22 and 26).Warming plate (38 and 42) is contained in and near between the plate (36 and 40), and outside polyethylene fitting part contacts with the inwall of fiberboard carton side plate (22 and 26).
The bottom and the top of shipping insulation packing chest are filled with open air chamber polyurethane filling block (44 and 46).Filling block is horizontally placed in the insulation packing chest, and near the inside face of vertical warming plate, thereby warming plate (38 and 42) is fixing on the throne, prevent that it from moving in inside.Can adopt the filling block of making by various materials, but be preferably isocyanurate foam.The material of bottom filling block is preferably and has absorbefacient open air chamber material, and isocyanurate foam for example is so that absorbent material absorbs unrestrained liquid and prevents because the cargo damage that leakage causes.The top filling block is fixing warming plate (38 and 42) also, thereby prevents that it from moving in inside.The fixation of relevant filling block sees also Fig. 7.
The top filling block also can be used for capacity weight (50) and cryogen (52) fixed bit, to prevent moving up and down and cause may damaging of capacity weight in the whole shipping insulation packing chest.The material of top filling block (46) is preferably open air chamber polyurethane, because it can make gas disengage by open air chamber structure, and satisfies the U.S. with the application requirements of dry ice as cooling system conditioner.Use the advantage of isocyanurate foam filling block (44 and 46) also to be embodied in and to form extra adiabatic environment on every side at capacity weight.
Then, place top warming plate (48), seal the insulation packing chest at the top of vertical warming plate (36,38,40 and 42).The outside polyethylene fitting part of warming plate (48) should be placed up.And inboard fitting part should be down, and plate periphery place or near the inboard fitting part of part should be tight against the top-side of warming plate (36,38,40 and 42).Because the joint of six warming plates (35,36,38,40,42 and 48) can form a crash-resistant protection thermal insulation layer around capacity weight, so this is best permutation and combination method.Otherwise if second fiberboard carton buttress is placed on first fiberboard carton, before second case pressurized, it can break the elongated warming plate at top, and may damage capacity weight.
The another kind of permutation and combination method of warming plate is that the vertical warming plate that will equate with the fiberboard carton free height places in the fiberboard carton, then the top warming plate is fixed between four blocks of vertical plates as a horizontal seben.But this is not a kind of best approach.Because if a littler fiberboard carton buttress is placed on the top that the shipping of making up by this way is incubated packing chest, its weight may act directly on the seben of top so, thereby can cause bigger damage danger to capacity weight.Although osed top top flap can carry a part of weight, the weight of little fiberboard carton still can act on this seben, causes seben to move down, and then damages capacity weight.
Though do not mark in the drawings, plastic inner lining, for example polyethylene foil also can be used for preventing to trickle down the damage that liquid is caused.Indivedual warming plates can package one deck plastic inner lining, is beneficial to the cleaning and the repeated usage of warming plate.Each capacity weight in the insulation packing chest can be placed the plastics protective lining.
Though only indicated mono-insulation packing chest among the figure, within the scope of the present invention, can well change with the quantity of adjustable clip-one core, with and corresponding size or even the quantity of lattice so that provide shipping complete in specifications to be incubated fiberboard carton.Figure 9 shows that four lattice shippings insulation fiberboard carton of the present invention.Warming plate (58) is assembled in the shipping fiberboard carton (56), has formed four lattices, and each lattice all has a seben (60).Shown among the figure that is placed on an opened seben (60) that closes on the lattice top.Seben can adopt warming plate of the present invention, maybe can adopt as the employed polyurethane of Fig. 6 top filling block.
Shipping insulation fiberboard carton can be used for transporting various goods to the temperature traverse sensitivity.Capacity weight (50) can be packaged in independent box or the bag, put into the insulation packing chest then.The responsive to temperature characteristic of capacity weight is determining being used for the suitably selection of cryogen (52) in the packing chest.For example, vaccine, vaccine, medicine of flaccid muscles, tooth adhesive agent and human organ are preserved the desired range of temperatures of transportation at 2 to 8 ℃.The desired range of temperatures of transportation of surgical bandage adhesive glue that biologics, Sickledex (for example HIV, HBV and HVC medicine box), reagent detect medicine box and be used for wound healing is at 0 to-19 ℃.The storage that concentrates blood plasma, tissue transplantation and active myofibroblast then requires to remain in-20 to-68 ℃ the range of temperatures.Use multiple common cryogen, for example ice cube and dry ice promptly can satisfy desired range of temperatures.
The employed method and apparatus of relevant manufacturing warming plate of the present invention sees also Figure 10 to Figure 16.Three blocks of 10mm thick polyethylene laths (7,9,11) of Fawolam-FS-30 are placed on the Fabricating machinery, and utilize backstop (70), side block (72) and pneumatic rear jig (74) and side anchor clamps (76) to be fixed in place.Hot air is admitted to hot air current drainage sheet via pipeline, and the both sides of blade are distributed with the aperture of vertical arrangement, and hot air is sent through these apertures.With suitable temperature also at the appointed time, utilize hot air that the end face of lath (9 and 11) and the end, the back side of lath (7) are heated.When reaching specified time, hot air current drainage sheet is moved to the side of Fabricating machinery.Then, push lath (9 and 11), it is contacted with lath (7), thereby heating part is bonded together.
When lath (7,9 and 11) be heated bond together after, with hand with 180 ° of part general frame upsets to opposite sides, as shown in figure 13.After the part general frame is fixed on upturned position, another piece lath (13) clamping is in place, make it be tight against backstop (70) and side block (72).
Utilize the hot air current drainage sheet (80) that resets again, the not bonding end face of lath (9 and 11) and the inside face end of lath (13) are heated; At this moment, lath (13) bonds together with the part general frame, thereby forms a complete framework.
Then, framework is sealed on the thick Fawolam-FS-30 outside foam fitting part (3) of 10mm, as shown in figure 14.Utilize the edge surface of hot air drain tube (84) heating frame (83), and between pipe (84) and fine setting roller bearing (86) roll extrusion outside foam fitting part lightly so that the foam fitting part is sealed on the framework by framework roller bearing (88) driving.
Next, crash-resistant isocyanurate foam core (15) is inserted in the center cavity that is formed by the bonding combination of sealing of outside foam fitting part and polyethylene lath (7,9,11 and 13), as shown in figure 15.
As shown in figure 16, last procedure is, with material is that the inboard fitting part of warming plate (5) of high density thin polyethylene (Fawolam-FS-100,3mm is thick) covers on the frame perimeter of the exposed surface that bonds to foam core material (15) and lath (7,9,11 and 13).Device therefor and method of operation thereof, same as shown in Figure 14.
Can transform the equipment shown in Figure 10 to 14, be used for together, to produce the hard heat-insulated packing chest that can use or put into the shipping fiberboard carton separately the warming plate heated sealant.Lath (7,9,11 and 13) and outside foam fitting part (3) are replaced respectively is vertically warming plate (36,38,40 and 42) and laterally warming plate (35), and increases the size of used hot air current drainage sheet.Owing to effectively eliminated seam, therefore together and the insulation packing chest that forms can improve insulating power with the warming plate heated sealant.
Figure 17 is to Figure 20 shows that formed heat-insulating board of the present invention.Every sandwiched heat insulation board and adjacent (non-cover plate) warming plate are made up, so that it is bonded with each other and/or is fixed together.Warming plate is made of the molded polyurethanes foam core material that is wrapped up by the polyethylene covering.Method is identical with the above method, and should be with reference to figures 10 to Figure 16.
In Figure 17, four blocks of side plates (90,92,94,96) utilize the mode and the adjacent side plates of outer or interior joint to fit together.A slip feather (98) is all arranged on the longitudinal edge of every block of side plate, and on the inboard side surface of next-door neighbour's opposite side longitudinal edge, leave a vertical elongated groove (100).The slip feather of adjacent side plates and groove are processed to certain shape, so that the slip feather of a plate fits in the groove of adjacent panels.Slip feather and groove should be accurately corresponding, so that two boards is bonded together securely.The size of slip feather and groove needn't be very accurate, and because of the polyethylene layer around slip feather and the groove has contractibility, therefore should leave certain tolerance.
As shown in figure 17, two interpleural slip feathers and fillister joint are bevelleds, can prevent from so in use to be drawn back.The angle of slip feather and groove can prevent that the side direction of side plate from separating, but can separate whole side plates by pull down certain piece plate relevant with other plates along the groove lengthwise.This is a kind of array mode of the best.For some application of insulation packing chest, can save this inclination mode.And other modes of the use in generation for example clamping plate or other connecting elements prevent moving of packing chest side plate, or rely on the inwall of shipping fiberboard carton to fix.
Side plate (90,92,94 and 96) engages with base plate (101), and its method is to utilize the slip feather on the side plate edge to match with groove (102,104,106 and 108) on the plate inner surface periphery, and assembles.Wherein two grooves (102 and 104) are skewed slot, to prevent vertically moving of side plate (90 and 92), the slip feather of respective angles are arranged on these two blocks of side plates.As previously mentioned, for some application of insulation packing chest, can save this inclination mode.In addition the slip feather of two blocks of side plates (94 and 96) and identical groove (106 and 108) have the side of vertical or near vertical, so that side plate (94 and 96) and side plate (90 and 92) when fitting together, are made in the downward elongated slip feather insertion base plate.
Figure 19 shows that another kind of combined method.Two very vertical grooves (102 and 122) are arranged on the inside face of two blocks of side plates (110 and 114), and two boards (112 and 116) respectively has two elongated slip feathers (124 and 126) that are positioned on the plate lateral edges in addition.The slip feather of plate (112 and 116) matches with the groove of plate (110 and 114), assembles.The slip feather of two blocks of side plates (112 and 116) matches with the groove of side plate (110 and 114).The downward elongated slip feather (128) of side plate matches with groove (130) on being positioned at base plate (117).
Figure 17 and warming plate shown in Figure 19 are assembled into a control step that is incubated packing chest, are indicated in respectively among Figure 18 and Figure 20.The assemble method of two cage plates is similar.
Shown in figure (A), the slip feather of side plate is pushed on the base plate in the corresponding grooves, so that the base slip feather inserts along groove, but must keep vertical with groove.Result after the assembling of this step is finished is shown in figure (B).Insert the opposing sideplates slip feather along opposite side groove (C), till insertion puts in place fully (D).The 3rd block of side plate is fixed on assembling position (E), so that the slip feather of adjacent two blocks of side plates and groove be assembled together mutually, in the corresponding recesses on the base plate of at last the base slip feather of the 3rd block of side plate being packed into (F).Then, fix last piece side plate,, and make its (H) in place fully to lower slider so that the slip feather of adjacent two blocks of side plates and groove are assembled together mutually (G).
Figure 21 is to rival's the warming plate product (Figure 21 to 23, Figure 25 to 27) and the test results of the various insulation packing chest heat-insulating properties that warming plate of the present invention (Figure 24 and 28) is assembled of making comparisons of serving as reasons shown in Figure 28.
The portable Acquisition Instrument of Usage data collection instrument XR 440M (Pace Science and Technology Ltd.) is tested.
The density of isocyanurate foam is 30kg/m
3
Polyethylene on the warming plate outside is Fawolam 30kg/m
3, the inboard is 100kg/m
3
To test warming plate and be assembled into the insulation packing chest, and mounting temperature sensor.Pack into glue ice (the Techni Ice of 5kg of each packing chest
), and the temperature inside the box monitored.
Test results shows: compare with 100% polyurethane material of no polythene material, wrap up the polyethylene covering around the polyurethane core, can obviously improve temperature retention time and reach 21 hours.Can be referring to Figure 21 and 24 and the comparative result of Figure 25 and 28.
As if it not only only is additive effect that test results shows.Can from Figure 24 contrast 23 and Figure 28 contrast the temperature time curve of Figure 27 and find out that by adopting the polyethylene covering, the heat-insulating property of packing chest is significantly improved.
We find it only is that polyethylene extra play itself is just than the good heat preservation performance of single core.Figure 21 and 24 and Figure 28 and 27 shown this point more apparently.Although the R value of polyethylene is lower, Fa Kedala Fawolam polyethylene extra play add the heat retaining property that the isocyanurate foam core improved isocyanurate foam significantly and can compare gross thickness (relatively Figure 22 and 23 and the temperature time curve of Figure 26 and 27).
Claims (15)
1. warming plate that is used to constitute the freight transport packing case, it is characterized in that: described warming plate is made of the hard insulating material core, and core intactly is enclosed with the polyethylene covering outward.
2. the warming plate that is used to constitute the freight transport packing case according to claim 1 is characterized in that: described core is made of polyurethane, polystyrene or polyethylene terephthalate cystosepiment.
3. the warming plate that is used to constitute the freight transport packing case according to claim 1 and 2 is characterized in that: described polyethylene is the closed air chamber foam.
According to claim 1 to 3 described any one be used to constitute the warming plate of freight transport packing case, it is characterized in that: described polyethylene is the non-crosslinked foam.
According to claim 1 to 4 described any one be used to constitute the warming plate of freight transport packing case, it is characterized in that: described warming plate has inside and outside and three surfaces, edge, each is made of inside face and outside face the layer of polyethylene foam, the density of the polyethylene of the density ratio formation outside face of the polyethylene of formation inside face is big, and the thickness of the polyethylene of formation inside face is littler than forming outside face polyethylene thickness.
6. the insulation packing chest that is made of described any one warming plate of claim 1 to 5 is characterized in that: have a described warming plate in the described insulation packing chest at least.
7. insulation packing chest according to claim 6 is characterized in that: described insulation packing chest is assembled into by described warming plate amalgamation, is cube shaped or cuboid, and its side plate and closed bottom interconnect.
8. according to the described freight transport packing case of claim 6 to 7, it is characterized in that: have an insulation packing casing in the described freight transport packing case at least.
9. freight transport packing case according to claim 8 is characterized in that: have the reinforcement fiberboard carton in the described shipping insulation packing chest.
10. make the method that is used to constitute the warming plate of freight transport packing case as claimed in claim 1, it is characterized in that: comprise the steps: (1) preparation first in the described method, two, three and four rectangle polyethylene members, each member has two opposing end faces, (2) near the end of above-mentioned each member or its, to be equipped with member links together, form the rectangular frame of a reality, (3) one the 5th polyethylene member of preparation, this member is connected with rectangular frame, form a housing with closed bottom and inner chamber, (4) fill insulant material in inner chamber, (5) preparation the 6th polyethylene member, itself and housing are linked together, can seal heat insulation core material and constitute warming plate.
11. manufacturing as claimed in claim 10 is used to constitute the method for the warming plate of freight transport packing case, it is characterized in that: utilize the sealed engagement face to link together between all members.
12. be used to constitute the method for the warming plate of freight transport packing case as claim 10 or 11 described manufacturings, it is characterized in that: utilize the heating juncture to link together between all members.
13. be used to constitute the method for the warming plate of freight transport packing case as claim 10 or 11 described manufacturings, it is characterized in that: described warming plate is bonded together, and forms shipping insulation packing chest.
14. manufacturing as claimed in claim 13 is used to constitute the method for the warming plate of freight transport packing case, it is characterized in that: described warming plate utilizes the sealed engagement face to link together, and forms shipping insulation packing chest.
15. be used to constitute the method for the warming plate of freight transport packing case as claim 13 or 14 described manufacturings, it is characterized in that: described warming plate utilization adds thermal bonding or slip feather and fillister joint mode and links together, and forms shipping insulation packing chest.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SG2003074192 | 2003-11-26 | ||
| SG200307419A SG115594A1 (en) | 2003-11-26 | 2003-11-26 | Insulated panels and shipping container incorporating said panels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1621319A true CN1621319A (en) | 2005-06-01 |
Family
ID=34793526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200410008301.5A Pending CN1621319A (en) | 2003-11-26 | 2004-02-26 | A warming plate for composing freight packaging box |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20050189404A1 (en) |
| CN (1) | CN1621319A (en) |
| SG (1) | SG115594A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| SG115594A1 (en) | 2005-10-28 |
| US20050189404A1 (en) | 2005-09-01 |
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